Xiaomi Unveils 21-DOF Bionic Dexterous Hand: 26-Motor Hybrid Drive, Full-Palm 1,500-Point Tactile Coverage
Xiaomi Technology's official WeChat account has disclosed R&D progress on a new-generation high-DOF bionic hand. The design is based on real production data from the pilot test center of Xiaomi Auto's Intelligent Manufacturing Department, and is positioned as a general-purpose dexterous manipulation solution for flexible manufacturing scenarios. The team collected motion data from 1,827 of 2,579 SOPs across 16 typical workstations, covering more than 70.8% of manual operation processes at typical workstations, and confirmed that 21 DOF is the optimal balance point for current factory scenarios, with average stable grasp success rates improving by 15% to 38% compared with 6- to 15-DOF versions. The design adopts a 26-motor hybrid drive that is primarily tendon-driven and integrates 5 direct-drive DOF; the hand itself weighs only 324 grams, with full-palm tactile coverage of 1,500 sensing points, at 1 mm resolution between fingers and 2 mm on the palm.
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